Comprehensive Description
provided by North American Flora
Coleosporium eupatorii Arth. Bull. Torrey Club 33 : 31. 1906
O and I. Pycnia and aecia unknown.
Uredinia chiefiy hypophyllous, scattered, small, 0.25 mm. across, eariy naked, yellow fading to white, ruptured epidermis somewhat noticeable ; urediniospores short-ellipsoid or globoid, 15-20 by 22-27 fi ; wall medium thick, 2-2.5 /*, half formed by the rather large, irregular, deciduous tubercles.
- bibliographic citation
- Joseph Charles Arthur. 1907. UREDINALES; COLEOSPORIACEAE, UREDINACEAE, AECIDIACEAE (pars). North American flora. vol 7(2). New York Botanical Garden, New York, NY
